DISPLAY UNIT: Diagnosis Procedure
WARNING: This page is about a different car, the 2013 Infiniti M56 and 2013 Infiniti M37. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK FUSE
Check for blown fuses.
Power source Fuse No. Battery 34 Is the inspection result normal?
YES: GO TO 2.
NO: Be sure to eliminate cause of malfunction before installing new fuse.
- CHECK BATTERY POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Check voltage between display unit harness connector and ground.
Signal name (+) (-) Ignition switch position Voltage (Approx.) Display unit Connector Terminal Battery power supply M215 11 Ground OFF Battery voltage Is the inspection result normal?
YES: GO TO 3.
NO: Check harness between display unit and fuse.
- CHECK ACC POWER SUPPLY CIRCUIT
- Turn ignition switch ACC.
- Check voltage between display unit harness connector and ground.
Signal name (+) (-) Ignition switch position Voltage (Approx.) Display unit Connector Terminal ACC power supply M215 23 Ground ACC Battery voltage Is the inspection result normal?
YES: GO TO 4.
NO: Check harness between display unit and BCM.
- CHECK GROUND CIRCUIT